键盘接口电路是通过信号线来输送11位扫描码的

A. String temp [] = new String {“a” “b” “c”};
B. String temp [] = {“a” “b” “c”}
C. String temp = {“a”. “b”, “c”}
D. String temp [] = {“a”. “b”, “c”}

A. iptables -t filter -I INPUT ACCEPT
B. iptables -t filter -A INPUT ACCEPT
C. iptables -t nat -A INPUT ACCEPT
D. iptables -P INPUT DROP